bulkhead
Isaac Kremer/ January 14, 2018/ / 0 comments
A structure built to prevent earth from sliding into an excavation; hence, the outside cellar entrance with its sloping cover. Photo from York, Pennsylvania, 2019. 2. A structure carried above the floor or roof as a means of lighting, or to cover the head of an elevator shaft or the like. 3. A partition closing the end of a form or preventing the passage of newly placed concrete at a construction joint. 4. A boxlike structure on a roof providing access to a stairwell or an elevator shaft. (Saylor, 1952)